[U-Boot] iMX6 PCie inbound traffic not working

[U-Boot] iMX6 PCie inbound traffic not working

["David Müller (ELSOFT AG)"]

Hello

I tried to use a Intel 82574 based miniPCIe NIC on a Freescale iMX6 eval
board as shown below. It seems that the NIC is unable to read and/or
write the descriptors in system memory. The settings of the PCIe core
registers seems to be OK (according to the iMX6 RM).

Any idea what i am missing?


U-Boot 2014.04-00078-gadcdeac-dirty (Apr 24 2014 - 15:40:02)

CPU:   Freescale i.MX6Q rev1.2 at 792 MHz
Reset cause: WDOG
Board: MX6-SabreSD
DRAM:  1 GiB
MMC:   FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
*** Warning - bad CRC, using default environment

  00:01.0     - 16c3:abcd - Bridge device
   01:00.0    - 8086:10d3 - Network controller
No panel detected: default to Hannstar-XGA
Display: Hannstar-XGA (1024x768)
In:    serial
Out:   serial
Err:   serial
Net:   e1000: 00:03:1d:0c:57:86
       e1000#0
Warning: e1000#0 using MAC address from net device


Dave

[U-Boot] iMX6 PCie inbound traffic not working

[Krunal Desai]

> From: u-boot-bounces at lists.denx.de [mailto:u-boot-bounces at lists.denx.de] On
> Behalf Of "David M?ller (ELSOFT AG)"
> Sent: Thursday, April 24, 2014 07:59
> To: u-boot at lists.denx.de
> Subject: [U-Boot] iMX6 PCie inbound traffic not working
> 
> I tried to use a Intel 82574 based miniPCIe NIC on a Freescale iMX6 eval
> board as shown below. It seems that the NIC is unable to read and/or write
> the descriptors in system memory. The settings of the PCIe core registers
> seems to be OK (according to the iMX6 RM).
> 
> Any idea what i am missing?

Can you get a dump of config space for the 82574? What are its BARs?

Krunal (mobile)

[U-Boot] iMX6 PCie inbound traffic not working

["David Müller (ELSOFT AG)"]

Krunal Desai wrote:
> Can you get a dump of config space for the 82574? What are its BARs?

=> pci display 1.0.0 0 40
00000000: 10d38086 00100006 02000000 00000010
00000010: 01100000 00000000 01010001 01120000
00000020: 00000000 00000000 00000000 00008086
00000030: 00000000 000000c8 00000000 00000100
00000040: 00000000 00000000 00000000 00000000
00000050: 00000000 00000000 00000000 00000000
00000060: 00000000 00000000 00000000 00000000
00000070: 00000000 00000000 00000000 00000000
00000080: 00000000 00000000 00000000 00000000
00000090: 00000000 00000000 00000000 00000000
000000a0: 00000011 00000003 00002003 00000000
000000b0: 00000000 00000000 00000000 00000000
000000c0: 00000000 00000000 c822d001 0f002000
000000d0: 0080e005 00000000 00000000 00000000
000000e0: 0001a010 00008cc1 00112810 04031c11
000000f0: 10110000 00000000 00000000 00000000


Dave